Type 2900-40 Pilot-Operated Safety Relief Valve

The 2900-40 Series pilot-operated safety valve offers exceptional performance and meets demanding ASME Section I Economizer and Boiler Applications.

Hydro plug is not required since pilot can be gagged.

Non-flowing pilot design.

Maximizes throughput by allowing economizer to operate at higher pressures with the use of pilots without seat leakage. Increases efficiency by providing repeatable seat tightness. 

For overpressure protection of economizers when a liquid certified safety relief valve or pilot operated safety relief valve cannot be used due to a steam relief scenario.  ASME Section 1 certified on steam and water per ASME Code Case 2446.

Includes pilot line pressure snubber to minimize chatter from rapid pressure excursions and water hammer.

Specifics:

Inlet Sizes: 1″ through 12″
Inlet Ratings: ASME Class 150 through 2500
Outlet Sizes: 2″ through 16″
Outlet Ratings: ASME Class 150 and 300
Orifice Sizes: D through W
Set Pressure Range: 15 to 5800 psig (1 to 400 barg)
Temperature Range: -40°F to 505°F (-40°C to 263°C)
Above 505°F with heat exchanger
Materials: Carbon steel base and 316 stainless steel internal components; pilot valve 316 stainless steel
Certifications:

• ASME B&PVC Section I
• Certified for steam and water per ASME
• B&PVC Code Case 2446
• China Manufacturing License (CML)
• API 520 and 521
• Others available upon request